functions.dhclient

   1 #!/bin/bash
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2012  IPFire Network Development Team                         #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 dhclient_start() {
  23         local interface=${1}
  24         local proto=${2}
  25
  26         assert isset interface
  27         assert device_exists ${interface}
  28
  29         local service=$(dhclient_proto2service ${proto})
  30         assert isset service
  31
  32         service_start "${service}@${interface}"
  33 }
  34
  35 dhclient_stop() {
  36         local interface=${1}
  37         local proto=${2}
  38
  39         local service=$(dhclient_proto2service ${proto})
  40         assert isset service
  41
  42         service_stop "${service}@${interface}"
  43 }
  44
  45 dhclient_status() {
  46         local interface=${1}
  47         local proto=${2}
  48
  49         local service=$(dhclient_proto2service ${proto})
  50         assert isset service
  51
  52         service_status "${service}@${interface}"
  53 }
  54
  55 dhclient_proto2service() {
  56         local proto=${1}
  57         assert isset proto
  58
  59         local service
  60
  61         case "${proto}" in
  62                 ipv4)
  63                         service="dhclient4"
  64                         ;;
  65                 ipv6)
  66                         service="dhclient6"
  67                         ;;
  68                 *)
  69                         return ${EXIT_ERROR}
  70                         ;;
  71         esac
  72
  73         assert isset service
  74
  75         echo "${service}"
  76         return ${EXIT_OK}
  77 }
  78
  79 dhclient_write_config() {
  80         local interface=${1}
  81         local file=${2}
  82         shift 2
  83
  84         assert isset interface
  85         assert isset file
  86
  87         local hostname=${HOSTNAME%%.*}
  88         local vendor=$(distro_get_pretty_name)
  89
  90         while [ $# -gt 0 ]; do
  91                 case "${1}" in
  92                         --hostname=*)
  93                                 hostname=$(cli_get_val ${1})
  94                                 ;;
  95                         --vendor=*)
  96                                 vendor=$(cli_get_val ${1})
  97                                 ;;
  98                         *)
  99                                 log WARNING $"Unknown configuration option passed: ${1}."
 100                                 ;;
 101                 esac
 102                 shift
 103         done
 104
 105         # Clear configuration file (if any).
 106         mkdir -p $(dirname ${file}) 2>/dev/null
 107         : > ${file}
 108
 109         # Print the header.
 110         (       echo "#"
 111                 echo "# This is a dhclient daemon configuration file for ${interface}."
 112                 echo "# THIS FILE IS AUTOMATICALLY GENERATED AND WILL OVERWRITE"
 113                 echo "# ANY CUSTOM CHANGES!"
 114                 echo "#"
 115                 echo "# $(date -u)"
 116                 echo "#"
 117                 echo
 118         ) >>${file}
 119
 120         # Global options.
 121         echo "send vendor-class-identifier \"${vendor}\";" >>${file}
 122         echo
 123
 124         # Interface options.
 125         (
 126                 echo "interface \"${interface}\" {"
 127
 128                 if isset hostname; then
 129                         echo "  send host-name \"${hostname}\";"
 130                 fi
 131
 132                 echo "}"
 133         ) >>${file}
 134
 135         return ${EXIT_OK}
 136 }